Power setworks



3 SHEETS'SHEET 1 INVENTOR,

ATTORNEYS" 1! 2 '9 s .l .m. 8 m m2 TT M W S 9 .HS J w OD m H Jan. 2,1923.

3 SHEETS-SHEET 2 Jo H N We L- To 14 I INVEAITOR I ATTORNEYS.

" 7 BY M... rw Kama,

Jan. 2, 1923. 1,440,650

Poja n lv xs I I FILED SEPT, 28, 1921 l 3 SHEETS'SHEET 3 INVENTOR, JOHNWRL TOM BY fi m- 6 7c 14 x. Mn.

' ATTORNEYS den. 2, 1923.

earner JDHN 1V ALTON, F TEILWAUKEE, WISCONSIN.

POW/ER SETWORKS.

Application filed. September 28, 1921. Serial No. 503,829.

To 0 r/"u/m. it may concern it known that l" Jenn W Zen of the UnitedStates res at hi'iilwaukee, in the coun-; of Mile. wee and State oflVisconsin. have invented certain new and useful improvements u PowerSetwo lrs, of which the following is a specification reference being hadto the accompanying drawing, forming a part thereof.

This invention relates to power set works in which a home stopcooperates with a setting arm and ratchet wheel to arrest the advance ofthe knees at predetermined points independently of the power connectionwith the set shaft. I

its main objects are with a ratchet wheel of pract ble size for settingat one revolution thereof for lumber within cert-aindimensions say fromone to six inches, to provide for setting for larger dimensions say oversix inchs. requiring more than one revolution of the ratchet wheel, by acontinuous movement of the set shaft and knees. and generally tosimplify and improve the construction and operation of set works of thisclass.

it consists in the construction, arrangement and combination of parts ashereinafter particularly described and pointed out in the claims.

the accompanying drawing like char cters designate the same parts in thesevera figures.

Figure l a. vertical. section of set works embodying the invention asapplied to a sa vmill carriage, which shown in cross section. Fig. 2 isa reduced vertical section on the line f22, Fig. 1, of a power drivingcon nection for advancing and receding the knees; Fig. 3 is an enlargedhorizontal section on the line Fig. 1, of the hand-operating lever,showing a spring clip for holding it in central position; Fig. a is aplan view on an enlarged scale of the stationary gage plate or ring andthe rotary lumber scale dial; Fig. 5 is a plan view of the ratchetwheel, setting arm and home stop, with the gage plate and dial removed;Fig. 6 is a side elevation of the plat-c and dial and a cross section onthe line 66,

5, of the setting arm; Fig. 71s a plan Fitz. view of a contact orabutment member pivotally mounted on the setting arm to cooperate with agage stop on the gage plate Figs. 8 and 9 are a plan VlGW and sideelevaresp etively. of candid: form home stop; Figs. 10 and llare' likeviews of another modification of the home stop; and Figs. 12 and 13 arelike views of still another modification of the home stopl Referring toFig.1., 1 designates a set shaft mounted in the usual manner lengthwise011a carriage frame 2, and provided with a bevel gear 3. l

The carriage is provided with truck wheels 4% and 5, of the usual or anysuitable construction.

For the operation of the set works by power, a driving shaft 9 ismounted in bearings on the under side of the carriage frame below andtransversely to the set shaft, and provided with a rope or cable sheave10, and with a paper or drivingfriction wheel 11, The driving frictionwheel 11 is arranged to cooperate with concentric cylindrical rims 13andl of a metal friction wheel 15, which is mounted on the rear end of ashaft 16 above and parallel with the shaft 9 and provided at its frontend with a bevel pinion 17,'1neshing vvitl1 the gear 3.

As'shown in Figs. 1 and 2, the driving shaft 9 adjacent the frictionwheel 11, is mounted in an eccentric bearing 19, provided with an arm20., which is connected by a rod 21- witli a lateral arm of a'handoperated lever 22. The driving friction wheel 11 is movable by the lever22 from a mid head blocks 6 and knees 7,

die neutral position into engagement with the. rim 13 or the rim 14 ofthe driven friction wheel, for advancing or receding the knees 7. Thelever 22, as shown in Figs. 1 and 3, is held normally byengagement witha. seator depression in a spring clip or support 2e in a central orneutral position with the driving friction wheel 11, which is con.-stantly rotated when the carriage is in use, out of contact with bothrims 13 and 14t A hollow stand or colunm 26, is mounted on the carriageframe 2 over the bevel gear 8 on the set shaft, and'is provided in theupper and lower parts thereof with removable aligned bearings 27 and 28,which are fastened in place in the column by bolts or screws 29 and 30.f

A tubular shaft 32, mounted in said bearings, is provided at its lowerend with a bevel pinion33, meshing with the gear 3. A ratchet wheel 35,said shaft above the column, and a pawl carrier or setting arm 36 isjournaled on the hub of the ratchet wheel coaxially therewith.

is keyed orfixed on more pawls 38, pivotally mounted therein adjacentthe toothed rim of the ratchet wheel by a pin 39, which is provided atits upper end with a crank handle l0, i manually throwing the pawl outof enga e rent with the ratchet wheel and turning he setting arm on theratchet wheel. Spring i9:

tends to hold the pawl in engagement with the teeth of the ratchetwheel.

in annular or circular plate 4-- lreyed or fixed to the upper end ot' atulm- 1211' post to, extending downwardly through the tubular shaft 32and provided at its lower end with collar which is releasably fastenedby a bolt- 1? to the base of the column, to hold the gage plate fromturning.

As shown in l, at and t3, the page plate t l is provided with one ormore pins or stops 49. removably fitting any of a circular series oiholes 50, shown in Fig". i, corresponding in numb-e" and arrangementwith the teeth oi the ratchet wheel.

in abutment or contact member 51, pivotally connected by the pawl pivotpin 35 with the setting arm 36, is yieldingly held by a spring against ashoulder 53 on the setting; arm, as shown in Figs. 1. 5'3, 6 and 7.

Directly over the plate ell, a dial 5'" is mounted on the upper end oi?a. shaft 56. passing' downwardly througlji the tubular post 45 andprovided at its lower end with a oevel g'ear 57, which meshes with asimilar gear 58 mounted on the set shaft 1. or attached concentricallytherewith, to the gear 3.

The dial is provided as usual. with a number of concentric scales forsawing lumber of different dimensions the width of the saw ke'rf beingtaken into account in these scales. except in the outer scale whichshows the distance of the knees "from the saw plane ii dicated by astationary index or pointer 59, flattened to the n e plate "2'? and ex;tending}; umvardly therefrom and inwardly over the dial, as shown in Fil and 4 The gear 5'? is detachably fastened. as by a pin 61, to theshaft 5-6, so that by removing the pin and the bolts or screws 29, 30and 45:", the ratchet wheel 35. setting; arm 36, gage plate 4 1 and dial555, with the shafts and 56, post 45 and bearings 2'? and 28., nev bewith drawn bodily upward from the stand or column 26.

. The set works is provided with a home stop for exactly limiting theadvance movement of the knees by the set-ting mechanism at differentpoints determined by the ad justment of the gage stop 49 on the greenplate ddflvhifih in turn determines the startine; point of the settino;arm, 36 for setting? lumber of any given dimension. This home stop ismovable into and out operative position in the path of the settinn; arm36 to permit more than one revolution of the ratchet wheel at a time,for saih oi? any dimension exceeding the i revolution of the ratchetwheel and setting arm.

shown in r 1 mg .L. 00 11 ler at outer vertical shaft ro ainst th'.

lly pro is the plunger nor iner o pen end 0 n The cylti'tute an aircushion inal advance movement oi? the setting; arm 36 and preventinrecoil. and shock or jar in the operation o he setti mechanism when thesetting a. 1-"! is hrou to its final position against the home stop. Tieshatt- (i l on which the home stop swings is extended below its hearing'in the column extension and is provided with a spring 7 which tends toswing the arm 63 inwardly and to the plunger 68 into and hold it in thepath oi: the setting arm 36 with a stop lug on the hub of the arm inengagement with av stop pin or lug 76 on the extension 55 as shown inFig. 5.

for checking by screw or adjustable valve 77, controlling avent passagein the closed end of the cylinder.

The cylinder extension 70 serves as a handle for turning: the home stopoutwardly into inoperative position as shown in L its o'iovemt-int inthis directioi'r being; limited by the oi a stop lug 78 on the hub ofthe arm 63 with the stop pin or lug T6.

Referring to Figs. 8 and f) in place of the air cushion cylinder andilunger shown in Figs. 1 and 5. the arr'i 6?: of the home stop may heprovided with an upwardly projectine abutment b0 having a handle 8. andmovable into and out of operative position in the path of the settingarm.

ieterring to F 10 and 11, the home step may consist simply of post 83,which may be fitted to slide up and down inthe column extension 65 intoand out of opera-- tive position in the path ot the setting arm 36. Acompression spring 84, interposed hetween the lower end of the post anda stationary support below it, tends to thrust the post upwardly andhold it in operative position. it is moved downwardly out of operativeposition by a hand lever 85.

Referring to Figs. 12 and 13, the home l l (l t consist of an arm orpost 87, pro v ded 21' its upper end wi h a handle 88, and pivoted itslower end to the column 26 or other convenient stationary support, so asto be swung into and out of operative position in engagement with ashoulder or seat formed in an extension 65 on the column A spring detent89, vieldingly holds the arm or post 87 in operative iosition.

In the operation of the set works. knees advanced by swi ing the leve n2'li'orward, thereby carrying the constaiwy rotated driving :trictionwheel 11 gementwith the rim 13 ot the driven wheel 15. and the knees arereceded pull nthe lever backward, therel be driving wheel 11 intoemgageh the rim l4: oi the driven wheel. .I neutral position, as shown1:. .3. i iving wheel 11 is out of enasement with both rims 13 and 1d ofthe seting mechanism.

with )Oi'll the advance and recediuc' moverents of the lrnees theratchet wheel. and the dial 55 are turned in corresponding directions bytheir connections hereinbetore descrited, with the set shaft 1, themovement of the lcnees in setting and receding being effected by adirect connection through the shat l6 andiriction wheels with thedriving sh aft 9, independently of the operation of the ratchet wheel35, settingarm 36 and dial 55, which simply determine the extent of theadvance movement of the knees for cutting lumber of differentdimensions.

For cutting lumber of any dimension within the limits of asinglerevolution of the ratchet wheel and setting arm 36, say from one to sixinches, the setting mechanism operates in a manner similar to that 0'?power set works of this type. It, for example, an inch board is to besawed from a twelve inch piece of timber which is set up with the lrneesto the saw plane, as .indicated on the outer scale of the dial 55,

the e pin or stop d9 is-placed in the hole 50 of t e gage plate l i,corresponding with that dimension. The setting arm 36 is then swungbackward with the handle 40 by which the pawl 38 is turned, and held outof engagement with the teeth of the ratchet wheel, till the abutment orcontact member 51 on the setting arm, engages the gage pin or stop 49,as shown in Figs. 5 and 6. The handle e0 being released, allows the pawl38 to be thrown by the spring 42'into engagement with the ratchet wheel,locking the setting arm thereto in its initial position for setting. Thesetter then throws the lever 22 forward, carryingthe driving trictioninto engagement with the rim 13 of the driven friction, which thereuponthrough the connections hereinbetore described,

moves the knees 7 forward on the head hlochs 6 till the setting" arm 36is brought into engagement with the home stop, and the advancemovementof the knees controlled thereby is arrested at the exact limitin setting}; for lumber of any dimension.

exceeding the limit of a single revolution of the ratchet wheel 35 andsetting arm 36, at the end of a'complete revolution ofthe setting armfrom its initial position, the abutment or contact member 51 strikingthe op-'.

posite side of the gage pin or stop e9, yields backward against thetension otthe spring 52 till it passes the gage pin or stop, whereuponit instantly returned to its normal position against the shoulder bysaid sprin This avoids he necessityht care and attention on the part. ofthe setter to withdraw the gage pin or stop in order to permit thesetting arm to make more than one complete revolution, and in case heneglects to dose, prevents breaking ing the setting mechanism,

In case a piece of lumber is to be cut of a dimension above the limit ofa single revolution of the ratchet wheel 35, say apiece eight inchesthick, 2. single revolution ot the ratchet wheel representingisixinches, the gage pin or stop 4:9'is placed in'a hole corresponding with.two inches, the setting arm 36 is t'urnedbaclr betoie against the gagepin or stop, the home stop is swung out of operative position with thestop lugfid against the stoppin or lug- 76,. andpowcr is applied to theset works asbelfoi'e; As soon as the setting arm passes-toe home stopthchome stop. is released and returned by the spring 74L to operativeposition in the path of said arm, the setting arm continuing to turnwith the ratchet wheel till it has completed a full revolution'atter'passing the home stop, whereupon it is broughtinto engagementwith. the home stop-and its further advance arrested as betore' The.kneesare thus advanced by" continuous operation, a distance representedby one complete revolution of the ratchet wheel and setting arm, plusthe traction oi a revolution represented by the adjustment of the gagepin or stop 49, as above explained. I; V

For cutting a piece 01"- lumberot still greater dimension, requiring twoor. more revolutions of the ratchet wheel and setting arm, the procedureis the. same, except that the hcune stop is held by the setter out ofoperative position till the setting arm passes it two or more times.

The operation of the set works with the home stops illustrated in Figs.8 and 9, and 11 or 12 and 13, is exactly the same that hereinbeforedescribed connection with the cushion stop, except t at the movement ofthe setting and ratchet wheel is instantly and abrtuptly arrestedwithout the check afforded by the form of stop shown in Figs. 1 and 5. v

Various changes in the deails of cons tion and arrangement of parts oftie mechanism other than those described, may be made, without departurefrom the principle and scope of the invention as defined in thefollowing claims.

I claim:

1. In power set works the combination of a set shaft, 21 powerconnection. with the set shaft, a ratchet wheel having a constantactuating connection with the set she: a setting arm coaxial with theratchet wheel, means for locking the sett' "1g arm to the ratchet wheelin predetermined. angular relation thereto, and a home stop movable intoand out of the path of the setting 2. In power set works the combinationof a set shaft, a power connection with the set shaft, a ratchet wheelhaving constant actuating connection with the set shaft, a setting armco-axial with the ratchet wheel, means for locking the setting arm tothe ratchet wheel in predetermined an lar re lation thereto, a home stopmovable into i out of the path of the setting arm, and means tending toshift said stop into and retain it in the path of said arm.

3. In power set works the combination of a set shaft, a power connectionwith thc'set shaft, a ratchet wheel having a constant ac tuatinp;connection with the set shaft, a setting arm coaxial with the ratchetwheel, means for locking the setting arm to the ratchet wheel inpredetermined angular relation thereto, and a home stop movable intoam;L out of the path of the setting; arm and comprising; a yieldingcontact member adapted to check the final advance movement of said armas it comes to rest.

4. In power set works the combination of a set shaft, a power connectionwith the set shaft, a ratchet wheel having a constant ac tuatingconnection with the set shaft, a setting arm coaxial with the ratchetwheel, means for locking the setting arm to the ratchet wheel inpredetermined angular relation thereto, and a home stop movable into andout of the path of the setting; arm and comprising a yielding contactmember adapt ed to oppose increasing resistance to the ad Vance of thesaid arm as it approaches its final position. s 1

5. 111 power set Works the combination of a set shart, a powerconnection with the set snafu, a ratchet w ieel having a constantactuating connection with the set shaft, a set t H arm co. l with theratchet wheel, means for locking the setting arm to the ratchet wheel inpredetermined angular reation thereto, a home stop movable into and outof the path of the setting arm and coma yielding member opposing in its'e position increafl resistance to (-e movement of said arm as it so isfinal position, and means tendi shift said stop into operative position.6. in power set works the combination of raft, a po ner connection foractuating); et shaf a ratchet wheel having a con actuating connectionwith the set shaft, a settino arm rotatably mounted coaxiallv withthe'ratchet wheel, means for releasably engaging the setting arm withthe ratchet wheel, a stationary gage plate coaxial with the ratchetwheel and setting arm, a gage stop adjustable on the plate for determining the initial position of the setting arm, a contact member mountedon the set ting arm and movable into and out of oper ative position tobe arrested by the gage stop in one direction and permitted to pass itin the other direction, and a home stop movable into and out of the pathof the setting arn 7. in power set works the combination of set shaft, apower connection for actuating the set shaft, a ratchet wneel having aconstant actuating connection with the set shaft, a setting; armrotatably mounted coaxially' with the ratchet wheel, a stationary gageplate coariial'with the ratchet wheel and setting arm, a stop adjustableon the gage plate for determining the initial position of the settingarm, a contact mem ber mounted on the setting arm and movable into andout of operative position to be arrested by the gage stop in onedirection and permitted to pass it in the other direc tion, meanstending to shift the contact member into and to hold it in operativeposition, and a home stop movable into and out of the path of thesetting arm.

8. In power set works the combination with a set shaft, a hollowsupporting column located over the set shaft, bearings removably mountedin the upper and lower parts of the column, tubular shaft mounted insaid bearings and geared with the set shaft, a ratchet wheel fixed onsaid shaft above the column, and a rotary setting arm, a stationary gageplate and a rotary lumber scale dial mounted coaxially with the ratchetwheel on thecolumn, and removablethera with and with said tubular shaftand bearings bodily from the column.

in witness whereof 1 hereto afix my signa;

ture, 1

JOHN i/VALlON.

